Further drilling and pump testing between the proposed Noora evaporation basin and the River Murray has provided data for determining aquifer parameters. Using the Boulton delayed yield method a transmissivity of 100 m2/day was obtained for one pumping test in the Loxton Sand aquifer. Data from all pump tests are to be reviewed on the basis of delayed yield. For this transmissivity value it has been estimated that first effects on the river would occur in about 40 years. At final equilibrium, estimated to be in about 100 years, the quantity of salt entering the river would be approximately 20 tonnes per day.